Time Difference: London to Hong Kong

Summary

See the current time in London and Hong Kong side by side, with the live UTC offset (HKT is UTC+8 year-round), updated every second.

How it works

1. Your browser reads the current moment from your device clock.
2. It converts that moment to Europe/London time using the IANA timezone database built into modern browsers.
3. The same moment is converted to Asia/Hong_Kong time (HKT, UTC+8).
4. The UTC offsets of both cities are compared to calculate the exact hour difference.
5. All three values — London time, Hong Kong time, and the offset — refresh every second.
6. When London switches between GMT and BST, the displayed offset adjusts automatically from +8 to +7 hours.

Use cases

• Scheduling video calls between London and Hong Kong offices.
• Checking if a colleague in Hong Kong is still at their desk.
• Planning UK-HK travel and arrival time comparisons.
• Remote teams coordinating daily standups across the UK and Hong Kong.
• Finding overlapping business hours for London-Hong Kong meetings.
• Verifying whether London is currently on GMT or BST.
• Journalists checking broadcast times for live Hong Kong events.
• Students and teachers arranging online lessons between the UK and Hong Kong.

Frequently Asked Questions